Improvement in utilizing bessemer-steel scrap



" NITED STATES PATENT OFFIC OLIVERWILDLIAMS, or GATASAUQUA, PENNSYLVANIA.

IMPROVEMENT IN UTILIZING BESSEMER-STEEL SCRAP.

Specification forming part of Letters Patent No. 197,193, dated November 13, 1877; application filed March 29, 1877.

" Bessemer steel by puddling it with pig-iron,

andthereby producin g a high grade of wroughtiron, or, as it maybe termed, carbonized wrought-iron.

My invention may be carried into'eflect,'in an ordinary puddling-furnace, in the followin g manner:

The scrap-steel, which should be 111.comparatively small pieces, is placed in a mass on the bed of; the furnace, and this mass'should be covered -withordinary cinder-or other material, in order to,,prevent oxidation. Above the mass of steel-scrap I placev the pig-iron. When the steel has been reduced by the heat to a pasty mass, anuui cast iron isjmelted, I

' proceed to puddle-themtogether by the usual puddling operationsfiand at the proper time remove the puddled mass,;subject it to the action of squeezers or hammers, and, finally, roll it into bars-.1

. Difl'erent proportions of steel-scrap andpigiron may be usedi A charge of-two hundred and fifty pounds of cast-iron, combined with a similar charge of scrap-steel, has produced good results; so, also, has a charge of three hundred pounds of cast-iron andtwo hundred pounds of steel-scrap. In many tests I have departed to a considerable extent from these proportions without any material change in the result.

Ihe wrought-iron thus produced is remarkably tough, has a texture resembling that of steel, will receive a high polish, and is supe' rior in other respects to the highest grade of wrought-iron.

I do not desire to claim, broadly, the puddling ofsteel and cast-iron together but I claim as my invention- 1 The mode herein described of utilizing Bessemer-steel scraps-that is to say, by placing a mass of the scraps on the bed of the furnace, a mass of cast-iron on the scraps, and, when the cast-iron is melted, pu'ddling it with the steel, all as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

OLIVER WILLIAMS. Witnesses:

HERMANN MoEssNER, HARRY SMITH. 

